LMC6482IMM CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The LMC6482IMM is a dual-channel CMOS amplifier manufactured by Texas Instruments, packaged in 8-VSSOP surface mount configuration. This component features rail-to-rail output capability and is designed for general-purpose analog signal amplification applications requiring low input bias current and low input offset voltage.

The LMC6482IMM currently holds Last Time Buy status, indicating discontinued production. Identification of equivalent and substitute parts is necessary to ensure design continuity and procurement availability for new production runs and long-term system support.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS
Number of Circuits	2
Output Type	Rail-to-Rail
Slew Rate	1.3	V/µs
Gain Bandwidth Product	1.5	MHz
Current - Input Bias	0.02	pA
Voltage - Input Offset	110	µV
Current - Supply (x2 Channels)	1.3	mA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	15.5	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the LMC6482IMM is determined by the following critical parameters:

Primary Substitution Criteria:

Dual-channel configuration (2 circuits)
Rail-to-rail output capability
Surface mount 8-pin package (8-VSSOP, 8-TSSOP, or 8-MSOP)
Operating temperature range: -40°C to 85°C
Supply voltage span compatibility: 3V to 15.5V minimum

Secondary Compatibility Factors:

CMOS or General Purpose amplifier type
Input bias current ≤ 1 pA
Input offset voltage ≤ 500 µV
Output current per channel ≥ 30 mA
RoHS3 compliance

The LMC6482IMM/NOPB and LMC6482IMMX/NOPB are direct Texas Instruments variants with identical electrical specifications and packaging. The MIC7122YMM and MIC7122YMM-TR are Microchip Technology alternatives that meet functional requirements with acceptable parameter variations within application tolerance ranges.

Parameter Comparison

Parameter	LMC6482IMM	LMC6482IMM/NOPB	LMC6482IMMX/NOPB	MIC7122YMM	MIC7122YMM-TR
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Microchip Technology	Microchip Technology
Amplifier Type	CMOS	CMOS	CMOS	General Purpose	General Purpose
Number of Circuits	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	1.3	1.3	1.3	0.5	0.5
Gain Bandwidth Product (MHz)	1.5	1.5	1.5	0.42	0.42
Current - Input Bias (pA)	0.02	0.02	0.02	1	1
Voltage - Input Offset (µV)	110	110	110	500	500
Current - Supply (mA, x2 Channels)	1.3	1.3	1.3	0.8	0.8
Current - Output / Channel (mA)	30	30	30	250	250
Voltage - Supply Span Min (V)	3	3	3	2.2	2.2
Voltage - Supply Span Max (V)	15.5	15.5	15.5	15	15
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP
Product Status	Last Time Buy	Last Time Buy	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalents (Preferred for Immediate Replacement):

LMC6482IMM/NOPB and LMC6482IMMX/NOPB are direct functional equivalents manufactured by Texas Instruments. These parts maintain identical electrical specifications and package configurations. LMC6482IMMX/NOPB carries Active product status, making it the preferred choice for new designs and long-term availability. Both variants are ROHS3 compliant with MSL rating of 1 (Unlimited).

Cross-Manufacturer Alternative (Functional Substitute):

MIC7122YMM and MIC7122YMM-TR are Microchip Technology alternatives that provide functional substitution with acceptable parameter variations. These parts feature lower slew rate (0.5 V/µs versus 1.3 V/µs) and lower gain bandwidth product (420 kHz versus 1.5 MHz), resulting in reduced bandwidth performance. However, they offer superior output current capability (250 mA per channel versus 30 mA) and lower supply current consumption (0.8 mA versus 1.3 mA). MIC7122YMM-TR is recommended over MIC7122YMM due to superior MSL rating (1 versus 2) and Cut Tape packaging format. Both variants maintain Active product status and ROHS3 compliance.

Substitution Suitability:

Applications requiring high-speed signal processing or bandwidth-critical functions should utilize LMC6482IMMX/NOPB to maintain original performance specifications. Applications with relaxed bandwidth requirements and emphasis on output current capability or power efficiency may employ MIC7122YMM-TR as a functional alternative.

Frequently Asked Questions (FAQ)

Q: Can LMC6482IMM be directly replaced with LMC6482IMMX/NOPB?

A: Yes. LMC6482IMMX/NOPB is a direct equivalent with identical electrical specifications, package configuration, and operating characteristics. The primary difference is product status: LMC6482IMMX/NOPB maintains Active status while LMC6482IMM is Last Time Buy. LMC6482IMMX/NOPB is recommended for new designs.

Q: What are the key differences between Texas Instruments LMC6482 variants and Microchip MIC7122 alternatives?

A: The LMC6482 series (CMOS type) provides higher slew rate (1.3 V/µs) and higher gain bandwidth product (1.5 MHz), making it suitable for faster signal processing. The MIC7122 series (General Purpose type) offers lower slew rate (0.5 V/µs) and lower bandwidth (420 kHz) but provides higher output current (250 mA per channel) and lower supply current consumption (0.8 mA). Selection depends on application bandwidth requirements and output current demands.

Q: Are all substitute parts pin-compatible?

A: Yes. All listed substitute parts utilize 8-pin surface mount packages (8-VSSOP, 8-TSSOP, or 8-MSOP) with 0.118" width and 3.00mm pitch, ensuring mechanical and electrical pin compatibility on PCB layouts designed for the LMC6482IMM.

Q: What is the significance of MSL (Moisture Sensitivity Level) differences?

A: MSL rating indicates moisture sensitivity during storage and handling. LMC6482IMM, LMC6482IMM/NOPB, LMC6482IMMX/NOPB, and MIC7122YMM-TR carry MSL 1 (Unlimited), allowing indefinite storage without moisture baking. MIC7122YMM carries MSL 2 (1 Year), requiring moisture baking if storage exceeds one year. For long-term inventory management, MSL 1 rated parts are preferred.

Q: Can MIC7122YMM-TR be used in applications originally designed for LMC6482IMM?

A: MIC7122YMM-TR provides functional substitution with parameter trade-offs. Applications tolerating reduced bandwidth (420 kHz versus 1.5 MHz) and slew rate (0.5 V/µs versus 1.3 V/µs) can utilize this alternative. Applications requiring the original bandwidth and slew rate specifications must use LMC6482IMMX/NOPB or equivalent LMC6482 variants.

Q: What packaging formats are available for these substitute parts?

A: LMC6482IMM, LMC6482IMM/NOPB, and LMC6482IMMX/NOPB are available in Cut Tape (CT) and Digi-Reel® packaging. MIC7122YMM is supplied in Tube packaging. MIC7122YMM-TR is available in Cut Tape (CT) and Digi-Reel® packaging. Packaging selection should align with production assembly requirements and inventory management practices.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed parts—LMC6482IMM, LMC6482IMM/NOPB, LMC6482IMMX/NOPB, MIC7122YMM, and MIC7122YMM-TR—are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and distribution.

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